fn collect_urls(
(local, remote): (Vec<OwnedMxcUri>, Vec<OwnedMxcUri>),
server_name: &ServerName,
content: &ExtractUrls,
) -> (Vec<OwnedMxcUri>, Vec<OwnedMxcUri>)Expand description
An event contributes only when its content carries a string url, mirroring
Synapse’s contains_url row filter; info.thumbnail_url rides along.
Candidates parsing as MXC URIs are appended by origin, newest first,
duplicates preserved.